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SASH HOLDER. No. 373,726. Patented Nov. 22, 1887.

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I SASH HOLDER. No. 373,726. Patented Nov. 22, 1887.

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SASH-HOLDER.

SPECIFICATION forming part of Letters Patent No. 373,726, dated November 22, 1887,

Application filed July 20, 1382'. Serial No. 244,507. No model.)

To aZZ whom it may concern:

Be it known that I, CHRISTIAN WILLIAM COOK, of West Jordan, in the county of Salt. Lake, Utah Territory, have invented certain Improvements in Sash-Supporters, of which the following is a specification.

Myinvention relates to that class of sash supporters or upholders wherein rollers are employed to bear upon or against the inner face of the window-frame, the rollers being mounted on or carried by the windowsash. Such appliances are designed for use on windows which have no sash-weights or similar counterbalancing devices for the sash.

My invention will be fully described hereinafter, and its novel features carefully defined in the claims.

In the drawings, which serve to illustrate my invention, Figure I shows one of the supporters detached and in front elevation, apart of the rollerirame being broken away. Fig. 2 is an edge elevation of the same, with a part of theattachingplate broken away. Fig. 3 is a back view showing'inner face of the supporter that rests onthe wood when the supporter is applied to the sash. All of these views are on a large scale. Fig. at is a front View, on a much smaller scale, of a wiudow' provided with my supporters on the sash. Figs. 5, 6, and 7 illustra' o my supporter when inserted in a mortise in the sash, Figs. 5 and 6 being on the same scale as Figs. 1 to 3, and

Fig. 7 on a scale one-halfthat of Figs. 5 and 6.

Referring to the first three figures of the drawings, A represents the metal base or back plate or the supporter provided with suitable screw-holes, o a, to receive screws forits attachment to the sash.

B is a metal frame composed of two side plates, 2) Z), and two cross-bearers,b b, which tie the twoplates of the frame rigidly together.

0 O are metal rollers rotatively mounted on fixed bearing-axles c c in the ends of frame B. In order. to give these rollers the necessary frictional contact with the face of the window-frame to compel them to roll whei the sash is raised, and at the same time to ,void, as far as possible the employment of a yielding elastic material for the tires or treads of the rollers,l provide the latter with tires'c, of

thin fabric ormaterial that will not yicld naterially to pressure, as a combination of canvas and rubber, for example, although other material of this character will serve.

My object is to prevent the contact of the -metal roller with the wooden frame, as such contact of the hard'roller with the measurablysoft material of the frame will inevitably wear a groove in the window-frame if the roller is rough, and if the roller is smooth it will slip on the frame and not roll. At the same time, if the roller be tired or faced with a' thick yielding material, it will acquire flattened faces or facets from the pressure and will soon lose its proper circular form. My roller has none of these objectionable features.

The frame B is connected to the plate A in the following manner: In the plate A are formed two slots, a (1., extending crosswise of the plate and having their lateral faces beveled, as shown in Fig. 8, and where the plate A is broken away in Fig. 2 the Hare being on the side of the plate that rests against the sash when the supporter is in place. These slots are so placed as to receive the ends of the bearing-axles c, and the ends of these axles where they rest in the slots are given the form of cones, the sloping sides of which fit the bevels of the sides of theslots. Thus the frame B is held up to and firmly connected with the plate A, and is permitted to play across or transversely of the plate Ato a limited extent.

D is a curved or arched leafspring, which will be of steel by preference. The ends of this spring rest on the cross-bearers b" between the side plates, Z), of frame B, between which the spring fits snugly to prevent. rattling or looseness. In Fig. 1 one of the plates 1) is broken away to show the bearing of the spring on the cross-bearer b. The arch of the spring at its middle stands under a. stout overhanging lug, a", on the plate A, through which is driven a thumbscrew, E, with a milled head or other form of head adapted to be conven iently grasped between the thumb and finger. The tip 0 of the screw is reduced in size and engages a hole in the spring at the middle of the latter. Thus the spring is held against escaping from under the screw or slipping and flying outwhen the screw is driven down upon it. The lug a should be strong enough to bear considerable strain.

Referring now to Fig. 4, it will be seen that one of my supporters (indicated in Fig. 4 as a whole by WV) is placed at each side of the window and preferably at a point about midway of the height of the sash S; but this not abso lutely essential, and the position of the supporter will properly vary somewhat with the size of the sash. The plate A of the supporter rests upon the front face of the sash S, to which it may be secured by screws. The edge of the plate A that is next the window-frame T will stand quite close thereto, and the rollers O G will press against and roll upon the frame. being pressed up thereto by the spring D. The word frame as here employed is meant to include not only the frame proper, but the strips and beads that form the groovesin which the sash plays.

In mounting the supporter on the sash it is best to slack up the tension of the spring D by withdrawing the screw E. When the supporters are in place and screwed fast, the thumbscrew may be driven down upon the spring until the rollers 0 press with sufficient elastic force against the window-frame. The

.elastic pressure in my supporter is due to the spring D, and not to any elasticity in the rollers themselves. The movement of the axles c in the slots at allows all the play of frame B on the plate A that will be necessary.

By using a comparatively long frame B and mounting a roller 0 in same at each end I obtain two bearings on the window-frame at each side, and the bearings at each side are a considerable distance apart. This serves to give the sash asteady movement. The frame B may rock a little on the tip of screw E as a fulcrum, as the screw is arranged midway be tween the rollers O. This construction permits all four of the rollers to bear firmly on the window-frame, even when the sash is very loosely set in said frame. WVhen the sash has been raised to the proper height, asingle turn of the screws E will clamp the rollers Ofirmly against the windowframe and hold the sash in place.

Mysupporters are not rights and lefts that is to say, it is not necessary to construct them in pairs. This is an important feature in considering economy of construction and convenience of sale.

In reference to the tires of the rollers, I will say that they may be constructed by covering a strip of canvas of the proper width with a film of unvulcanized rubber, then wrapping this strip twice around the roller tightly, and then vulcanizing the rubber while the tire is in place. Such a tire will not acquire flattened faces or facets from use.

If desired, the metallic parts of my supporter may be plated with nickel or silver. When in place on the sash, the concd ends of the axles e do not project far enough through I the plate A to bear on the wood, as this would impede the movement of the frame B. Should they project a little, however, the wood may 3 be cut away at these points.

Figs. 5, 6, and 7 illustrate my improved sash-supporter as mounted in a mortise in the edge of the sash S.

Fig. 5 shows the screw E as arranged in Figs. 1 to 3 bearing directly on the spring D. After the supporter has been inserted in the mortise prepared for it, the screw E is passed through a hole in the sash and screwed through the lug (d. This construction is best suited for supporting the upper sash.

Fig. 6 shows the screw E with its axis arranged at right angles to that of the same screw iii-.the other figures. In this casethe screw E screws through a nut-plate, a. secured to the face of the sash, and bears on a wedge-block, a", arranged in a suitable guide or way, a secured to or forming a part of'plate A. The inclined face of this wedge block bears on and plays over the inclined face of ahlock, d, fixed to or forming apart of spring D. The purpose of this device is of course to communicate the movement of the screw E at right angles to spring D.

Fig. 7 merely shows how the supporter may be held in place in the mortise by providing narrow end mortises at g g to receive the projecting ends of plate A. These ends should fit snugly in the mortises, so as to hold the plate tightly.

Having thus described my invention, I

claim 1. In a sash-supporter, the combination, with the attaching-plate, as A, of the rollerframe, as B. mounted in guides on said plate, whereby it is connected to and may slide on the latter, the rollers mounted in the ends of said roller-frame, the arched spring resting at two points on said frame, and a thumb-screw, as E, for varying the tension of said spring, said screw having its head exposed and convenient for manipulation, as set forth.

2. In a sash-supporter, the combination, with the attaching-plate, as A, provided with transversely-arranged slots, as at, having beveled margins, of the roller-frame, as B, its rollers O, and the axles. 0 of said rollers, the conical ends of said axles projecting into and engaging the slots a, thus forming attaching devices and guides for said roller-frame, and the spring, as D, for pressing the rollers up to the window-frame, as set forth.

3. In a sash-supporter, the combination. with the roller-frame and rollers, of the screw E, its nut-plate, the spring D, resting at two points on said roller-frame and provided with a block, (I, having an inclined face, the guide a and the wedge-block a. in said guide and bearing on said block d, said sc ew bearing on said block a", substantially as set forth.

In witness whereof I have hereunto signed my name in the presence of two'subsc'ribing witnesses.

OHRISTAIN 'WILLIAM COOK.

Witnesses:

EPHRAIM CAFFALL, PHILIP BRIGGS. 

